Sound production monomer, sound production module and electronic terminal

Abstract

The invention discloses a sound production monomer, a sound production module and an electronic terminal. The sound production monomer comprises a magnetic circuit system, a vibration system and a circuit board; a voice coil is formed by winding two voice coil wires together, and the two end parts of each voice coil wire respectively form a wire inlet end and a wire outlet end; the leading-out positions of the two wire inlet ends are located at one side of the voice coil, and the leading-out positions of the two wire outlet ends are located at the other side of the voice coil. The two wire inlet ends and the two wire outlet ends are electrically connected with corresponding bonding pads of the circuit board respectively, and an internal circuit of the circuit board is configured to be usedfor electrically connecting the two wire inlet ends together and electrically connecting the two wire outlet ends together. According to the sound production monomer, the two leads are connected in parallel, so that the wire diameter is smaller than that of a single wire on the premise of the same resistance value, the voice coil is thinner, the magnetic gap can be narrower, a higher BL value isachieved, and the sensitivity of a vibration system is improved.

Description

technical field [0001] The present invention relates to the field of electroacoustic conversion, and more specifically, the present invention relates to a sounding unit; the invention also relates to a sounding module and an electronic terminal using the sounding unit. Background technique [0002] The loudspeaker is an important acoustic component in electronic equipment, and it is a transducer device that converts electrical signals into acoustic signals. The existing loudspeaker module includes a casing, and a magnetic circuit system and a vibration system arranged in the casing. The magnetic circuit system of the loudspeaker may adopt a single magnetic circuit structure, a double magnetic circuit structure, a three magnetic circuit structure or other structures well known to those skilled in the art. [0003] A traditional voice coil is made by winding a voice coil wire, for example, the voice coil wire can be wound on a voice coil bobbin to form a voice coil. The voic...

AI Technical Summary

Problems solved by technology

[0004] In order to reduce the internal resistance, it is necessary to reduce the number of winding turns and / or layers of the voice coil wire on the voice coil bobbin, but this will reduce the BL value of the sound generating device, making the vibration characteristics of the vibration system poor

If you want to increase the BL value, you can only increase the number of turns and / or layers of the voice coil wire on the voice coil frame, but this will increase the internal resistance of the voice coil, making the vibration characteristics of the vibration system poor, resulting in poor performance of the sound generating device meet needs

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